I have an 09 Corolla with a timing chain. I thoroughly researched the issue (I’m not a mechanic and I’m not a “car guy”), and timing chains, from what I gathered, are simply not supposed to break for hundreds of thousands of miles. If they do, you can hear it pretty clearly before it happens (youtube has some cool vids of this before it occurs).
The whole point of having a chain instead of a belt is to prevent total engine failure described in this story.
If someone knows differently from what I’ve researched - give me a shout out because I’ll need to have it checked. Thus far, my engine, at 107k miles, is running fine with no signs of the chain breaking.
You are 100% correct on the reason for a chain. They should not break, even after 250k mis........